CN213055165U

CN213055165U - Rubber ring cutting die

Info

Publication number: CN213055165U
Application number: CN202021851017.5U
Authority: CN
Inventors: 何正辉
Original assignee: Nanjing Runchi Rubber Products Co ltd
Current assignee: Nanjing Runchi Rubber Products Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-04-27
Anticipated expiration: 2030-08-28

Abstract

The utility model provides a rubber ring cutting die, including the plastic pipe of fixed mounting and with the kicking block of moulding pipe movable mounting, the outside annular array of kicking block is provided with a plurality of dogs, kicking block and dog movable mounting, the diameter of the circle that the summit of a plurality of dogs is constituteed is greater than the diameter of kicking block, the dog is used for the spacing of rubber ring and unloads the rubber ring from the kicking block, the shaping pipe is used for the shaping of rubber raw and other materials, the plastic pipe is connected through the extension spring with the kicking block, the extension spring is installed the kicking block with moulding pipe laminating, still cup jointed raw and other materials and thrust pipe on the plastic pipe, the thrust pipe is used for advancing raw and other materials to the position of kicking block; the utility model discloses continue the structural feature of itself of rubber circle, make rubber circle cutting still have higher circularity after accomplishing, make things convenient for the quality inspection in later stage to and the observable shape of off-the-shelf shape, reduce the destruction to rubber circle elasticity, reduction in production cost protects production facility.

Description

Rubber ring cutting die

Technical Field

The utility model relates to a rubber production mould field especially relates to a rubber circle cutting die.

Background

The rubber ring is usually produced by cutting, the most common cutting at present is to flatten tubular rubber raw materials, in the cutting mode by the cutting machine, the mode is simple but has larger damage to the elastic force of the rubber, and the roundness of the rubber ring after the cutting is finished can not be ensured, for the products with higher requirements, the production can not pass quality inspection, so that the product is sleeved in a shaping tube and then is cut, in the form, if the slit is adopted as the lower cutter position of the cutter edge for cutting, the cutting is sometimes incomplete, the transmission of raw materials is difficult, the raw materials are easy to gather at the slit position, the damage to the cutting blade is large without adopting the slit, the production cost is increased, so how to ensure the cutting blade to smoothly cut the rubber ring, and make it be movable, can open the cutting gap when the cutting, it is that this gap closure makes raw and other materials pass forward smoothly after the cutting is accomplished the utility model discloses the technical problem that needs the solution.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an overcome above-mentioned problem or solve a rubber circle cutting die of above-mentioned problem at least partially to the great problem of cutting knife damage is cut to the cutting mode of the rubber circle of solving the circular cutting.

In order to achieve the above object, the technical solution of the present invention is specifically realized as follows:

the utility model provides a rubber circle cutting die, including fixed mounting's plastic tube and with moulding pipe movable mounting's kicking block, the outside annular array of kicking block is provided with a plurality of dogs, kicking block and dog movable mounting, the circle diameter that the summit of a plurality of dogs is constituteed is greater than the diameter of kicking block, the dog is used for spacing of rubber circle and unloads the rubber circle from the kicking block, moulding pipe is used for the shaping of rubber raw and other materials, the plastic tube passes through the extension spring with the kicking block to be connected, the extension spring is installed kicking block and moulding pipe laminating, still cup jointed raw and other materials and thrust pipe on the plastic tube, the thrust pipe is used for advancing raw and other materials to the position of kicking block.

As a further scheme of the utility model, one side of plastic pipe is provided with the cell body that the snap ring surrounded, and the lug cooperation installation on cell body and the kicking block, the diameter of snap ring is the same with moulding pipe, and the diameter of snap ring is the same with the maximum diameter of kicking block to the degree of depth of cell body is greater than the length of kicking block lug, forms the cavity that is used for installing the extension spring between cell body and the lug, and the central point at the lug is installed to extension spring one end, and the central point at the cell body is installed to the other end of extension spring.

As a further scheme of the utility model, the dog is installed in one side of kicking block for the lug, and the dog passes the supporting seat installation through the round pin axle, and the supporting seat is fixed mounting on the kicking block at the arch.

As a further scheme of the utility model, the dog below is provided with the support frame, and the size of support frame is less than the size of dog, and the dog is through round pin axle and support frame installation, and the support frame cup joints through the torsional spring and installs at round pin epaxially.

As a further proposal of the utility model, the stop block is provided with an arc plate at the upper half part towards one side of the plastic pipe.

As a further aspect of the present invention, the rotation angle of the torsion spring is greater than 90 degrees.

As a further aspect of the present invention, the elastic force of the torsion spring is greater than the elastic force of the tension spring when the stopper is in the vertical direction, and when the clearance is generated between the plastic pipe and the top block and the cutting position is entered, the elastic restoring force of the tension spring is greater than the elastic restoring force of the torsion spring.

As a further proposal of the utility model, a stopper is arranged between the groove body and the lug, and the stopper limits the distance that the ejector block leaves the plastic pipe.

The utility model provides a rubber circle cutting die, beneficial effect lies in: the utility model discloses a cutting mode of activity, when raw and other materials promote on the moulding pipe, kicking block and moulding pipe are closed, raw and other materials promote the dog and make the opening gap that produces the cutting between kicking block and the moulding pipe, make the cutting knife can radially insert on moulding pipe, fully cut rubber raw and other materials, make the shaping of rubber circle, continue to promote raw and other materials, the rotatory dog of rubber circle under the thrust effect, finally break away from with moulding pipe along the rotatory direction of dog, accomplish the cutting of rubber circle, this kind of mode continues the structural feature of itself of rubber circle, make the rubber circle cut still have higher circularity after accomplishing, make things convenient for the quality inspection in later stage, and the observable shape of off-the-shelf shape, reduce the destruction to rubber circle elasticity, and reduce production cost, protect production equipment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of an overall installation full-section structure provided by an embodiment of the present invention.

Fig. 2 is a schematic view of an operating state structure provided by the embodiment of the present invention.

Fig. 3 is a schematic view of an axial structure of the top block according to an embodiment of the present invention.

In the figure: 1. a shaping tube; 11. a snap ring; 12. a cavity; 13. a thrust tube; 14. raw materials; 2. a top block; 21. a tension spring; 3. a stopper; 31. a support frame; 32. an arc plate; 34. a torsion spring; 35. a pin shaft; 36. and (4) supporting the base.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Referring to fig. 1-3, an embodiment of the present invention provides a rubber ring cutting mold, including a fixedly installed plastic pipe 1 and a top block 2 movably installed with the plastic pipe 1, an outer side annular array of the top block 2 is provided with a plurality of stoppers 3, the top block 2 is movably installed with the stoppers 3, a diameter of a circle formed by vertexes of the stoppers 3 is larger than a diameter of the top block 2, the stoppers 3 are used for limiting the rubber ring and unloading the rubber ring from the top block 2, the plastic pipe 1 is used for molding a rubber raw material 14 and cutting the rubber ring under a working state thereof, the rubber ring is kept elastic and circular when the cutting is completed, the plastic pipe 1 is connected with the top block 2 through a tension spring 21, the tension spring 21 attaches the top block 2 to the plastic pipe 1, the plastic pipe 1 is further sleeved with the raw material 14 and a thrust pipe 13, the thrust pipe 13 is used for pushing the raw material 14 to a position of the top block 2, thereby the cutting to the rubber circle can be accomplished to the annular cutting knife.

Preferably, one side of plastic pipe 1 is provided with the cell body that snap ring 11 surrounded, the cell body is installed with the lug cooperation on the kicking block 2, the diameter of snap ring 11 is the same with plastic pipe 1, the diameter of snap ring 11 is the same with the maximum diameter of kicking block 2, and the degree of depth of cell body is greater than the length of 2 lugs of kicking block, form the cavity 12 that is used for installing extension spring 21 between cell body and the lug, the central point at the lug is installed to extension spring 21 one end, the central point at the cell body is installed to the other end of extension spring 21, make extension spring 21's effort balanced on kicking block 2, and then can be smooth accomplish the annular cutting of.

Preferably, the stopper 3 is installed on one side of the top block 2 opposite to the projection, the stopper 3 is installed through a support 36 by a pin 35, the support 36 is the projection fixedly installed on the top block 2, the stopper 3 rotates around the pin 35, and the rotation is limited by the torsion spring 34,

in order to facilitate the rubber ring to be separated from the stopper 3, the rotation angle of the torsion spring 34 is greater than 90 degrees, and the optimal rotation angle is 150 degrees, so that the rubber ring slides down from the shaping tube 1 under the combined action of the elastic force of the rubber ring and the thrust tube 13.

Preferably, the initial elastic force, that is, the elastic force of the torsion spring 34 when the stopper 3 is in the vertical direction is greater than the elastic force of the tension spring 21, so that the raw material 14 pushes the stopper 3 to move together with the top block 2 when contacting the stopper 3, and when a gap is generated between the shaping pipe 1 and the top block 2 to enter the cutting position, the elastic restoring force of the tension spring 21 is greater than the elastic restoring force of the torsion spring 34, that is, the amplitude of the elastic force curve of the tension spring 21 is greater than the amplitude of the elastic force curve of the torsion spring 34.

In another embodiment, in order to reduce the difficulty of the ratio of the elastic force between the tension spring 21 and the torsion spring 34, a limit block is arranged between the groove body and the protrusion, the limit block limits the distance between the top block and the plastic pipe 1, and in this embodiment, the tension spring 21 only serves as the restoring force of the top block 2 to attach the plastic pipe 1 and the top block 2.

Preferably, dog 3 below is provided with support frame 31, and the size of support frame 31 is less than the size of dog 3, can make dog 3 rotate under the transmission of support frame 31 to can not form the physics with kicking block 2 and hinder, dog 3 is through the installation of round pin axle 35 with support frame 31, and support frame 31 cup joints and installs on round pin axle 35.

Preferably, the stopper 3 is provided with an arc plate 32 at the upper half part of one side facing the plastic pipe 1, and the arc plate 32 makes the area of the top of the stopper 3 smaller than the area of the bottom of the stopper 3, so that the rubber ring can conveniently slide off the stopper 3.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A rubber ring cutting die is characterized by comprising a plastic pipe (1) fixedly installed and a top block (2) movably installed with the plastic pipe (1), the utility model discloses a rubber ring shaping device, including kicking block (2), dog (3), shaping pipe (1), the shaping of rubber raw and other materials (14), shaping pipe (1) is connected through extension spring (21) with kicking block (2), extension spring (21) are with kicking block (2) laminating installation, still cup jointed raw and other materials (14) and thrust tube (13) on shaping pipe (1), thrust tube (13) are used for advancing raw and other materials (14) to the position of kicking block (2).

2. The rubber ring cutting die as claimed in claim 1, wherein a groove body surrounded by the snap ring (11) is arranged on one side of the plastic pipe (1), the groove body is installed in a matched mode with the bump on the top block (2), the diameter of the snap ring (11) is the same as that of the plastic pipe (1), the diameter of the snap ring (11) is the same as the maximum diameter of the top block (2), the depth of the groove body is larger than the length of the bump of the top block (2), a cavity (12) for installing the tension spring (21) is formed between the groove body and the bump, one end of the tension spring (21) is installed at the center of the bump, and the other end of the tension spring (21) is installed at the center of the groove.

3. The rubber ring cutting die as set forth in claim 2, characterized in that the stopper (3) is mounted on the top block (2) on the side opposite to the projection, the stopper (3) is mounted through a support seat (36) by a pin (35), and the support seat (36) is a projection fixedly mounted on the top block (2).

4. The rubber ring cutting die according to claim 3, characterized in that a support frame (31) is arranged below the stopper (3), the size of the support frame (31) is smaller than that of the stopper (3), the stopper (3) is mounted on the support frame (31) through a pin shaft (35), and the support frame (31) is mounted on the pin shaft (35) in a sleeved manner through a torsion spring (34).

5. Rubber ring cutting die according to claim 4, characterized in that the stop (3) is provided with an arc plate (32) in the upper half of the side facing the shaped pipe (1).

6. Rubber ring cutting die according to claim 5, characterized in that the rotation angle of the torsion spring (34) is larger than 90 degrees.

7. The rubber ring cutting die according to claim 6, wherein the elastic force of the torsion spring (34) is greater than the elastic force of the tension spring (21) when the stopper (3) is in the vertical direction, and the elastic restoring force of the tension spring (21) is greater than the elastic restoring force of the torsion spring (34) when a gap is generated between the molded tube (1) and the top block (2) into the cutting position.

8. The rubber ring cutting die as claimed in claim 6, wherein a limiting block is arranged between the groove body and the projection, and the limiting block limits the distance of the top block from the plastic pipe (1).